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United States Patent | 6,036,074 |
Manabe | March 14, 2000 |
In a staple clinching mechanism in a stapler wherein legs of a staple driven in by a driving mechanism are bent in a first direction after the legs of the staple are passed through stacked work sheets, the staple clinching mechanism includes: a pair of movable clinchers; and a pair of curved bend guiding surfaces, for guiding bending the legs of the staple while the movable clinchers are bending the legs of the staple, wherein one of the bend guiding surfaces is inclined in a second direction perpendicular to the first direction.
Inventors: | Manabe; Katsunori (Tokyo, JP) |
Assignee: | Max Co., Ltd. (Tokyo, JP) |
Appl. No.: | 159764 |
Filed: | September 24, 1998 |
Sep 24, 1997[JP] | 9-276415 |
Current U.S. Class: | 227/155; 227/131 |
Intern'l Class: | B25C 005/02 |
Field of Search: | 227/155,131,79,82,83,87,154 |
4378085 | Mar., 1983 | McVeigh | 227/79. |
4593947 | Jun., 1986 | Hagemann | 227/155. |
4844319 | Jul., 1989 | Kurosawa | 227/155. |
5029745 | Jul., 1991 | Akizawa et al. | 227/131. |
5413266 | May., 1995 | Jairam | 227/155. |
5791543 | Aug., 1998 | Udagawa et al. | 227/155. |
Foreign Patent Documents | |||
0322906A2 | Jul., 1989 | EP. | |
0838310A2 | Apr., 1998 | EP. | |
10-128683A | May., 1998 | JP. | |
WO97/31758 | Sep., 1997 | WO. |